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Rheological Property of Waxy Crude Oil in Restart Process of Pipeline

[+] Author Affiliations
Yanbo Xu, Qiyu Huang

China University of Petroleum (Beijing), Beijing, China

Paper No. IPC2010-31480, pp. 399-403; 5 pages
doi:10.1115/IPC2010-31480
From:
  • 2010 8th International Pipeline Conference
  • 2010 8th International Pipeline Conference, Volume 3
  • Calgary, Alberta, Canada, September 27–October 1, 2010
  • Conference Sponsors: International Petroleum Technology Institute and the Pipeline Division
  • ISBN: 978-0-7918-4422-9 | eISBN: 978-0-7918-3885-3
  • Copyright © 2010 by ASME

abstract

In the restart process of pipeline containing waxy crude oil after shutdown, the rheological properties of oil, including viscosity, yield stress and thixotropy is studied. The entire restart process is decided by various factors; in this paper the effects of outlet temperature, shutdown and restart temperature as well as shutdown time duration to the rheological property are taken into the consideration. The measurements are employed using a controlled shearing rheometer to investigate rheological property based on different restart conditions. In addition, this paper has also researched affection of emulsion and blended samples mixing with two types of crude oil in various ratios. Finally comprehensive rheological evaluation to restartability is obtained.

Copyright © 2010 by ASME
Topics: Pipelines , Crude oil

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